Nkwachi-N

   public static int[] algoFunc(int[] numArray) {


       int totalMultiplication   = 1;

       for(int num : numArray) {
           try{
               totalMultiplication   = totalMultiplication   * num;
           }catch (ArithmeticException e){
               totalMultiplication   = 0;

Nkwachi-N

int removeDuplicateElements(List array){
  List newArray = [];
	
  for(var element in array) {
    if(!newArray.contains(element)) {
      newArray.add(element);
    }
  }

Nkwachi-N

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:rubber/rubber.dart';

class MenuPage extends StatefulWidget {
  MenuPage({Key key}) : super(key: key);

  @override
  _MenuPageState createState() => _MenuPageState();
}

Nkwachi-N

package com.nnkwachi.firebase_test;

import android.graphics.Color;
import android.graphics.drawable.GradientDrawable;
import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProvider;<?xml version="1.0" encoding="utf-8"?>

Nkwachi-N

package com.nnkwachi.firebase_test;

import android.graphics.Color;
import android.graphics.drawable.GradientDrawable;
import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProvider;